Solve for w:
2(w-2)=w (w cannot be equal to -5)
original width -- x
original length -- x+5
area = x(x+5)
new width = x-2
new length = 2x+10
new area = (2x+10)(x-2)
(2x+10)(x-2) - x(x+5) = 136
2x^2 + 6x - 20 - x^2 - 5x - 136 = 0
x^2 + x - 156 = 0
(x-12)(x+13) = 0
x = 12 or x = -13
ignoring the negative,
width = 12
length = 17
original area = 12(17) = 204
new width = 10
new length = 34
new area = 10(34) = 340
increase in area = 340-204 = 136 , YEahh!
Answer this Question
Quadratic Equation - The dimensions of a rectangle are such that its length is 3...
math - the dimensions of a rectangle are such that its length is 3 inches more ...
algebra - The length of a rectangle is 6 cm more than four times the width. If ...
algebra , help - Can someone help me set up the equations thanks. Directions: ...
Algebra - Length of rectanngle is 1 cm more than width. If length of rectangle ...
algebra - suppose the length of a rectangle increases,but the perimeter remains ...
ALGEBRA HELP - The perimeter of a rectangle is 60cm. The length (L) of the ...
Algebra - The length of a rectangle is 1ft. more than twice the width, and the ...
math - The length of a rectangle is 5 in. more than twice its width.? How do I ...
Algebra/geometry - a rectangle has a width of 4 cm less than it's length. if a ...